The vehicles were hit with a box of some sort that were said to hold a pair of ferrets. Those two ferrets were also thrown at a car, according to authorities.
Local investigators are asking the public for help gathering information about the incident.
“This would have been a very disturbing and alarming incident to those who witnessed it, and we are keen to speak to anyone who has information that could assist the investigation,” a North Yorkshire spokesperson said in a statement.
Anyone with information about the incident is urged to contact North Yorkshire Police on 101, option 2, or Crimestoppers at 0800-555-111, reference number 12190221285.
The two ferrets involved in the bizarre encounter were taken into the custody of the Royal Society for the Prevention of Cruelty to Animals, police said.